标题： 高吞吐量QC-LDPC解码器在分层解码中具有优化调度策略 显示英文标题

标题： High Throughput QC-LDPC Decoder With Optimized Schedule Policy in Layered Decoding

摘要： 本研究设计了一种用于准循环（QC）低密度奇偶校验（LDPC）码的分层解码调度策略，该策略具有高吞吐量和良好性能。同时考虑了调度对解码器硬件实现的延迟以及解码性能的影响。具体而言，我们分析了流水线解码架构中各种调度序列所需的空闲时间，并将问题形式化为一个旨在最小化空闲时间的旅行商问题（TSP）。此外，考虑到不同的调度序列可能会影响解码性能，我们根据促进改进解码结果的调度特性来优化求解TSP所使用的图。仿真结果显示，所识别的调度序列在保持5G新无线（NR）LDPC码优异解码性能的同时，实现了较低的硬件延迟。 显示英文摘要

摘要： In this study, a scheduling policy of layered decoding for quasi-cycle (QC) low-density parity-check (LDPC) codes with high throughput and good performance is designed. The influence of scheduling on the delay of the decoder's hardware implementation and on the decoding performance are considered simultaneously. Specifically, we analyze the idle time required under various scheduling sequences within a pipelined decoding architecture and formulate the problem as a traveling salesman problem (TSP) aiming at minimizing idle time. Furthermore, considering that different scheduling sequences can affect decoding performance, we refine the graph used to solve the TSP based on scheduling characteristics that promote improved decoding outcomes. Simulation results demonstrate that the identified scheduling sequence achieves a low number of hardware delays while maintaining excellent decoding performance for 5G New Radio (NR) LDPC codes.